Ticket 48266 - do not free repl keep alive entry on error
Description: There is no need to free the "repl keep alive" entry
if any stage of the "add" fails. Otherwise we could
potentially run into a double free.
https://fedorahosted.org/389/ticket/48266
Reviewed by: nhosoi(Thanks!)
(cherry picked from commit e5d9b0c741af1c3ea5e8212148a3ba95ee18925b)